Home / 853,433.40-1,280,150.10-814,067.40

Finding the Fourth Proportional to 853,433.40, 1,280,150.10 and 814,067.40

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Solution

The fourth proportional to 853,433.40, 1,280,150.10 and 814,067.40 is: 1,221,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,433.40 : 1,280,150.10 = 814,067.40 : x
  2. Step 2: Convert to fraction form
    853,433.40/1,280,150.10 = 814,067.40/x
  3. Step 3: Cross multiply
    853,433.40x = 1,280,150.10 × 814,067.40
  4. Step 4: Simplify right side
    853,433.40x = 1,042,128,463,516.74
  5. Step 5: Solve for x
    x = 1,042,128,463,516.74/853,433.40
  6. Step 6: Final answer
    x = 1,221,101.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.